As expected, they released the name after great-grandmother Queen Elizabeth II and other senior royals had been informed.

The newest little Windsor, fourth-in-line to the throne, was born Saturday at 8:34 a.m. London time, less than three hours after her mother checked into St Mary’s Hospital. She weighed 8 pounds, 3 ounces.

Less than 10 hours later, after a short visit by big brother Prince George, the couple left the hospital to return to Kensington Palace, and the palace press office tweeted a closeup of the baby.

The couple also tweeted their thanks to the hospital staff for their care and to everyone else, including President Obama and Prime Minister David Cameron, for their warm wishes.

The three names are both traditional and sentimental: Elizabeth for her great-grandmother and her great-great grandmother. Diana for Will’s late, beloved mother.

And Charlotte is the feminine version of Charles, her paternal grandfather. Plus, it’s been the name of princesses and queens in the past.

Prior to the announcement and the birth, bettors in Britain had made Alice and Charlotte the favorites. Diana had been favored by Americans, according to YouGov surveys of both countries.

But naming the queen’s fifth great-grandchild after William’s late and much-loved mother, Princess Diana, was considered less likely because it’s not a traditional royal-family name used by multiple ancestors.

The new princess will be christened, probably in about three months, at which time her godparents will be named. Once again, Brits are telling reporters they hope Will’s brother, Prince Harry, and Kate’s sister, Pippa Middleton, will be chosen.

In the meantime, the Cambridges are expected to move north to their country retreat, Anmer Hall, on the royal Sandringham estate in Norfolk, which will become their main home for the time being.

Prince William’s wife, the Duchess of Cambridge, “was safely delivered of a daughter” Saturday morning, less than three hours after checking into central London’s St. Mary’s Hospital, royal officials said. (May 2) AP

ROYAL BABY ARRIVES: IT’S A GIRL!Get your first look at the new princess | 00:55

Just hours after her birth, the new princess headed home with her parents. But first, a beaming Kate and William stepped outside of the hospital to show off their new daughter, to the delight of the cheering crowd. Wochit

Prince William’s wife Kate gives birth to a girl, sparking celebrations for the royal couple’s new arrival, a princess who becomes the fourth in line to the British throne.
Video provided by AFP Newslook

Prince William’s wife Kate has given birth to a girl, who will be fourth in line to the British throne, Kensington Palace said in a statement. “Her Royal Highness The Duchess of Cambridge was safely delivered of a daughter at 8.34 am,” it said.
Vide Newslook

One royal super fan celebrated his 80th birthday outside St. Mary’s Hospital in London while awaiting the arrival of the new royal baby. The Duchess of Cambridge is expected to give birth in the coming days. (April 30) AP

ROYAL BABY ARRIVES: IT’S A GIRL!It’s a girl | 00:47

Kate, the Duchess of Cambridge, has given birth to a baby girl, royal officials said Saturday. The baby weighs 8 pounds 3 ounces. The palace added that Kate and her child are both doing well, and that William was present for the birth. (May 2) AP

ROYAL BABY ARRIVES: IT’S A GIRL!When and what to expect from the birth of the royal baby | 03:55

USA TODAY’s Alison Maxwell and Maria Puente talk about the impending birth of England’s next Royal baby. USA TODAY

On the other hand, Charlotte has its own tragic associations, albeit much older: an early 19th-century Princess of Wales who died in childbirth and was mourned as intensely as Diana.

Still, naming her after Prince Charles, who said before the birth he was hoping for a granddaughter, is likely to delight the Prince of Wales. And it’s Pippa Middleton’s middle name, too.

Plus, Chelsea Clinton named her new baby Charlotte, so there’s an American “Princess Charlotte” in the offing if her grandmother is elected the first woman president in 2016.

One of the British betting companies, Ladbrokes, said it would be paying out more than $1 million to bettors who guessed Charlotte, but would do so “with a smile,” according to spokeswoman Jessica Bridge.

Duchess Kate and Prince Willilam leave the hospital with their new baby girl, about nine hours after she was born on May 2. (Photo: WPA Photo via Getty Images)